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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '1613e70da079a73d6cf22fb28a6ba95c6c53411ecd2b6c06162d07bd16bb5215' 
  AND token = 'b4L05fi7NUzhS8vjbfGzJ1k9CX4P5bHeZw5AnAZWWPM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}